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License
    This file is part of OpenFOAM.

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    under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
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Class
    Foam::XiEqModels::constant

Description
    Simple constant model for the equilibrium flame wrinkling \c XiEq

    Reference:
    \verbatim
        Weller, H. G. (1993).
        The development of a new flame area combustion model
        using conditional averaging.
        Thermo-fluids section report TF 9307.
    \endverbatim

SourceFiles
    constant.C

\*---------------------------------------------------------------------------*/

#ifndef constant_H
#define constant_H

#include "XiEqModel.H"

// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

namespace Foam
{
namespace XiEqModels
{

/*---------------------------------------------------------------------------*\
                           Class constant Declaration
\*---------------------------------------------------------------------------*/

class constant
:
    public XiEqModel
{
    // Private Data

        //- Specified equilibrium flame-wrinkling value
        dimensionedScalar XiEq_;


protected:

        //- Update coefficients from given dictionary
        virtual bool readCoeffs(const dictionary& dict);


public:

    //- Runtime type information
    TypeName("constant");


    // Constructors

        //- Construct from components
        constant
        (
            const dictionary& dict,
            const ubRhoThermo& thermo,
            const compressibleMomentumTransportModel& turbulence,
            const volScalarField& Su
        );

        //- Disallow default bitwise copy construction
        constant(const constant&) = delete;


    //- Destructor
    virtual ~constant();


    // Member Functions

        //- Return the flame-wrinkling XiEq
        virtual tmp<volScalarField> XiEq() const;


    // Member Operators

        //- Disallow default bitwise assignment
        void operator=(const constant&) = delete;
};


// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

} // End namespace XiEqModels
} // End namespace Foam

// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

#endif

// ************************************************************************* //
